CN218674102U

CN218674102U - Cable for leakage detection

Info

Publication number: CN218674102U
Application number: CN202223024295.5U
Authority: CN
Inventors: 冯博
Original assignee: Shenzhen Xiangwei Measurement And Control Technology Co ltd
Current assignee: Shenzhen Xiangwei Measurement And Control Technology Co ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-03-21
Anticipated expiration: 2032-11-14

Abstract

The utility model discloses a cable for weeping detects belongs to weeping and detects technical field, and this cable includes: the induction heating device comprises a first induction line, a second induction line and an insulating material, wherein the first induction line and the second induction line are arranged in parallel, and the insulating material wraps the peripheries of the first induction line and the second induction line; the cable is of a flat structure, and a plurality of liquid leakage holes are formed in the upper surface and the lower surface of the cable. The utility model provides a cable has solved among the prior art because of the limited problem of application scene that cable structural defect caused, has still solved the problem that the cable easily weared and torn.

Description

Cable for leakage detection

Technical Field

The utility model belongs to the technical field of the weeping detects, a cable for weeping detects is related to.

Background

In a computer room, a storage room for various kinds of data, and the like, if water adheres to or leaks from a wall surface, a floor surface, surfaces of various kinds of equipment, a pipe joint portion, and the like in a building, there is a possibility that the floor surface of the building is corroded, various kinds of equipment are erroneously operated, or data is deteriorated. In addition, leakage of water may cause economic loss or cause safety accidents when water is stored or transported.

The cable for detecting leakage in the prior art is only composed of two metal wires wrapped with conductive rubber, and the two metal wires are adhered through an adhesive tape. The structure is extremely simple, so that the application scene is limited, the cable is not easy to be regular when being installed and laid, the conductive rubber is exposed and easy to wear, and the metal wire is easy to fall off from the adhesive tape.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a cable for weeping detects to solve the limited problem of application scene that the cable structural defect among the prior art caused, still solved the problem of the easy wearing and tearing of cable.

The utility model provides a pair of a cable for weeping detects, include: the induction heating device comprises a first induction line, a second induction line and an insulating material, wherein the first induction line and the second induction line are arranged in parallel, and the insulating material wraps the peripheries of the first induction line and the second induction line; the cable is of a flat structure, and a plurality of liquid leakage holes are formed in the upper surface and the lower surface of the cable.

Further, the first induction wire and the second induction wire comprise a detection wire core and a braided sheath for protecting the detection wire core; the woven sheath is arranged on the periphery of the detection wire core and fixed in the insulating material.

Further, the braided sheath includes a first braided layer and a second braided layer; first weaving layer is located detect the periphery of sinle silk, the second weaving layer is located the periphery of first weaving layer.

Further, the first braided layer is braided from an insulating material.

Further, the second weaving layer is woven by a material with good water permeability.

Further, the cable is of a crawler-type structure.

Furthermore, the liquid leakage holes on the upper surface and the lower surface of the cable are opposite to each other.

Furthermore, the equal-distance interval sets up between the weeping hole above the cable, the equal-distance interval sets up between the weeping hole below the weeping detects the cable.

Further, the cross-sectional dimension of the cable is 5.0mm 1.85mm, and the spacing between the weep holes is 2.0mm.

Furthermore, the insulating material is flexible insulating glue.

The utility model discloses the beneficial effect who produces is:

(1) The cable of the embodiment of the utility model is a crawler-type flat structure, the thickness of the cable is extremely small, and the cable does not occupy too much space when being installed on site; the detection is more convenient to be carried out at the low-lying position of the narrow space and uneven ground.

(2) The utility model discloses first response line and second response line are parallel arrangement, and this structural design not only can reduce the cable volume, can also reduce environment electromagnetic interference and reduce the misstatement rate.

(3) The utility model discloses first response line and second response line periphery are wrapped up by flexible insulating material to conveniently adjust installation angle.

(4) The detection wire core provided by the embodiment of the utility model is provided with the braided sheath, so that leakage information can be rapidly detected when leakage occurs; can quickly permeate when meeting water, thereby improving the leakage detection speed.

(5) The utility model discloses the weeping hole one-to-one of two sides about the cable, this kind of diplopore formula structural design make weeping detectivity high, detection speed fast.

(6) The utility model discloses the detection sinle silk is built-in insulating material, so can strengthen the life-span and the interference killing feature of detecting the sinle silk, avoid detecting the sinle silk and expose the contact metallics and arouse the wrong report police.

(7) The utility model discloses in the detection sinle silk is fixed in the insulating cement, so detect the sinle silk and be difficult for droing.

(8) The utility model discloses cable low cost, the reliability is high, is applicable to various risk places that have the risk of leaking.

Drawings

Fig. 1 is a schematic structural diagram of a cable according to an embodiment of the present invention;

fig. 2 is a cross-sectional view of a cable according to an embodiment of the present invention;

fig. 3 is a top view of a cable according to an embodiment of the present invention when water drops are formed thereon;

fig. 4 is a schematic view of an inner layer structure of a cable according to an embodiment of the present invention;

fig. 5 is a schematic view of the leakage detection operation provided by the embodiment of the present invention;

fig. 6 is a schematic diagram of the acquisition circuit of fig. 5.

The meaning of the reference symbols in the drawings is:

200-a first induction line; 300-a second sense line; 400-insulating material; 600-braiding a sheath; 610-a first braid; 620-second braid; 700-water drop; 800-weep hole.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in fig. 1-4, an embodiment of the present invention provides a cable for leakage detection, including: the first and

second induction lines

200 and 300 are arranged in parallel, and the insulating material 400 is wrapped around the first and

second induction lines

200 and 300. In this embodiment, the insulating material 400 is preferably a flexible insulating glue. The peripheries of the first induction line 200 and the second induction line 300 are wrapped by flexible insulating materials, so that the installation angle of the cable is convenient to adjust.

The cable of this embodiment is designed as a crawler-type flat structure, and has a plurality of weep holes 800 on its upper and lower surfaces. The thickness of the cable is extremely small due to the crawler-type structure, and excessive space is not occupied when the cable is installed on site; and the detection is convenient to be carried out at the low-lying position of the narrow space and uneven ground.

First induction line 200 and second induction line 300 are parallel structure setting, and this structure not only can reduce the cable volume, can also reduce environment electromagnetic interference and reduce the false alarm rate.

Preferably, the liquid leakage holes 800 on the upper and lower surfaces of the cable are opposite to each other to form a double-hole structure. The design ensures that the leakage detection sensitivity is high and the detection speed is high.

In addition, the weep holes 800 on the cable are preferably equidistantly spaced, and the weep holes 800 on the lower surface of the detection cable are also equidistantly spaced. Of course, the unequal interval arrangement is also possible, and the equidistant interval arrangement is only convenient for processing the cable and also convenient for detecting leakage.

The cross-sectional dimension of the cable is preferably around 5.0mm 1.85mm (error ± 0.2 mm); the wire diameter is small, the occupied space is small, and the wire is suitable for various places. The interval between the weep holes 800 is preferably about 2.0mm.

The first induction wire 200 and the second induction wire 300 each include a detection wire core, and a braided sheath 600 for protecting the detection wire core; the braided sheath 600 is disposed around the wire core and fixed in the insulating material 400. The detection wire core is provided with the braided sheath 600, so that leakage information can be quickly detected when leakage occurs; can quickly permeate when meeting water, thereby improving the leakage detection speed.

Braided sheath 600 includes a first braided layer 610 and a second braided layer 620. First woven layer 610 is located at the outer periphery of the test wire core and is woven from an insulating material, such as nylon. The second woven layer 620 is formed on the outer circumference of the first woven layer 610 and is woven of a material having good water permeability, such as non-woven fabric and cotton cloth.

The utility model discloses detection sinle silk is built-in insulating material, can strengthen the life-span and the interference killing feature of detecting the sinle silk, avoids detecting the sinle silk and exposes contact metallics and arouses the wrong report police. In addition, the detection wire core is fixed in the insulating glue, so that the detection wire core is not easy to fall off.

To sum up, the cable for detecting liquid leakage provided by the embodiment of the utility model can be arranged outside the pipeline; the cable is low in cost, high in reliability and suitable for various places with water leakage risks.

Fig. 5 is a working diagram of the leakage detection provided by the embodiment of the present invention. The first induction line 200 and the second induction line 300 are in a parallel state and are not in contact with each other, and the detection line core is not in contact with each other. In the case where no leakage occurs, the resistance between the first sensing line 200 and the second sensing line 300 tends to infinity and is negligible. When leakage occurs, the liquid leakage holes 800 of the first induction line 200 and the second induction line 300 are communicated through liquid to form a loop, the loop current changes, the voltage collected by the collecting circuit changes, and an alarm signal is output.

Fig. 6 is a schematic diagram of the acquisition circuit of fig. 5. The first sensing line 200 is connected to a ground GND of the acquisition circuit, and the second sensing line 300 is connected to a voltage comparator Vp of the acquisition circuit. When the cable is not in contact with liquid, the voltage comparator outputs voltage, and the voltage of the Vout end collected by the MCU is low; when the cable contacts liquid, the liquid is immersed from the liquid leakage hole 800, the first induction line 200 is conducted with the second induction line 300 through the liquid to form a loop, at the moment, the voltage comparator outputs voltage, the voltage of the Vout end collected by the MCU is high, and the MCU sends out an alarm signal. The alarm signal can be output to the indicating lamp control module to enable the LED lamp to indicate the alarm state, and the LED lamp can also be in communication connection with other monitoring platforms (an upper computer or an external alarm and the like).

It should be noted that the shape of the weep hole is not limited in the alternative embodiment of the present invention, and may be a circular hole, a rectangular hole, or the like.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only represent preferred embodiments of the present invention, which are described in more detail and detail, but are not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A cable for leakage detection, comprising: the induction heating device comprises a first induction line, a second induction line and an insulating material, wherein the first induction line and the second induction line are arranged in parallel, and the insulating material wraps the peripheries of the first induction line and the second induction line; the cable is of a flat structure, and a plurality of liquid leakage holes are formed in the upper surface and the lower surface of the cable.

2. The cable for leakage detection according to claim 1, wherein said first and second induction wires comprise a detection wire core, and a braided sheath for protecting said detection wire core; the braided sheath is arranged on the periphery of the detection wire core and fixed in the insulating material.

3. The cable for leakage detection according to claim 2, wherein said braided sheath comprises a first braided layer and a second braided layer; the first weaving layer is located the periphery of detection sinle silk, the second weaving layer is located the periphery of first weaving layer.

4. The cable for leakage detection according to claim 3, wherein said first braid is braided from an insulating material.

5. The cable for leakage detection according to claim 3, wherein said second braided layer is braided from a material having good water permeability.

6. The cable for leakage detection according to claim 1, wherein the cable is of a caterpillar type structure.

7. The cable for leakage detection according to claim 1, wherein the leakage holes of the upper and lower surfaces of the cable are opposite to each other.

8. The cable for weep detection as defined in claim 1, wherein the weep holes above the cable are equally spaced apart and the weep holes below the cable are equally spaced apart.

9. The cable for weep detection of claim 1, wherein the cross-sectional dimension of the cable is 5.0mm by 1.85mm, and the spacing between the weep holes is 2.0mm.

10. The cable for leakage detection according to claim 1, wherein the insulating material is a flexible insulating glue.